Home / 919,559.88-1,379,538.35-279,913.63

Finding the Fourth Proportional to 919,559.88, 1,379,538.35 and 279,913.63

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Solution

The fourth proportional to 919,559.88, 1,379,538.35 and 279,913.63 is: 419,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,559.88 : 1,379,538.35 = 279,913.63 : x
  2. Step 2: Convert to fraction form
    919,559.88/1,379,538.35 = 279,913.63/x
  3. Step 3: Cross multiply
    919,559.88x = 1,379,538.35 × 279,913.63
  4. Step 4: Simplify right side
    919,559.88x = 386,151,585,273.35
  5. Step 5: Solve for x
    x = 386,151,585,273.35/919,559.88
  6. Step 6: Final answer
    x = 419,930.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.